Pack'em Folding J-Style Kayak Rack Automobile Roof Top Rack Racks - 2 Sets - in Many Colors Folded racks are approximately 6-1/2" high Large "J" style design makes loading and unloading fast and easy 2 different sets of bottom mounting plates one curved and one straight Completely Assembled with all mounting hardware provided Racks will accept kayaks up to 3 feet wide and weighing up to 100 pounds